I have a curio cabinet that just will not let go of smudges...til now. I lost the list of green cleaning recipes that I found on line,but remembered enough to put together a glass cleaner that really works.It's 3 parts water,1 part distilled vinegar,2 drops natural dish soap and 2 drops of tea tree and lavender oil. I shook them together in an 18 oz. spray bottle (made in the USA! ) and went to work.One use and my curio was smudge free and sparkling.Then I tackled windows ,glass in picture frames , clock faces, and anything else glass.Took a lot less time and the house smelled so clean too! I couldn't believe how much cleaner that I still had in the bottle when I was through so even though it can be a little more costly than prepared cleaners, it's much less expensive to use and it's GREEN!